I am aware that the hatch tool fails in 'some' situations, usually if shapes are rather complex with ellipses and/or splines (such as exploded or projected texts).I'm relying on Qt for this functionality, so it's unlikely that this problem can be fixed on the QCAD side.As a workaround it sometimes helps to break down the shape into several, smaller shapes. In the case of exploded or projected texts, use the hatch tool on one or a few individual letters at once instead of the whole text.